I USE THIS WHILE VACUUMING AND CLEANING FLOORS,SWEEPING ETC., AS I AM A BACK PATIENT. WORKS AS ADVERTISED AND THEN SOME-STAYS HOT REALLY LONG TIME-HOURS

AND HEATS UP INSTANTLY. PORTABILITY IS A PLUS AS YOU CAN WEAR IT ON CAR TRIPS OR LONG STANDING TIMES OR WHILE GETTING GROCERIES OR LOTS OF WALKING. PROVIDES SOOTHING HEAT JUST LIKE A REAL HEATING PAD, BUT YOU CAN GO ANYWHERE WITH IT. JUST MAKE SURE YOU WEAR IT OVER YOUR UNDERWEAR OR A CAMI AS IT GETS TO 130 DEGREES.